Guillermo Alvarado-Ajcuc was convicted of murder Friday in the 2012 slaying of an Aquebogue woman

A 23-year-old Riverhead man has been convicted in the rape and murder of an Aquebogue woman near the Riverhead DMV parking lot in 2012.

After deliberating over the course of three days, a Suffolk County jury Friday found Guillermo Alvarado-Ajcuc, an undocumented Guatemalan immigrant, guilty of two counts of murder in the May 6 death of Mirian Yohana Garcia Mansilla.